Fig. 2.

Immunofluorescence staining of HN in nonpolarized (A) and polarized (B) human RPE cells. Humanin (green) was localized both in the apical and basal domains (B). No primary antibody control shown in (C). Scale bar: 20 μm. Reproduced from Sreekumar et al. Invest Ophthalmol Vis Sci. 2016; 57(3):1238-53 and is licensed under a Creative Commons Attribution-Non-Commercial-No Derivatives 4.0 International License. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)